Uncluttering ER Diagrams


I’m wondering if it is possible to build an ER diagram that can do the following:

  • Show how table A and table B relate to table C, but not how table A and table B relate to each other

I am building an ER diagram around one table that has about 20 references to other tables at level 1 of reference depth, and am only interested in seeing how the other 19 tables relate to the first table. Unfortunately the references among the other 19 tables creates such a clutter of lines that the diagram becomes almost impossible to comprehend.

Thank you!